117780639317 has 16 divisors (see below), whose sum is σ = 136081441152. Its totient is φ = 100748689920.

The previous prime is 117780639287. The next prime is 117780639329. The reversal of 117780639317 is 713936087711.

It is a cyclic number.

It is not a de Polignac number, because 117780639317 - 2¹⁰ = 117780638293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117780639217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 657473 + ... + 817209.

It is an arithmetic number, because the mean of its divisors is an integer number (8505090072).

Almost surely, 2^117780639317 is an apocalyptic number.

117780639317 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

117780639317 is a deficient number, since it is larger than the sum of its proper divisors (18300801835).

117780639317 is a wasteful number, since it uses less digits than its factorization.

117780639317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163708.

The product of its (nonzero) digits is 1333584, while the sum is 53.

The spelling of 117780639317 in words is "one hundred seventeen billion, seven hundred eighty million, six hundred thirty-nine thousand, three hundred seventeen".